/** @file

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies  this distribution, and is available 

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  CUpnpMediaServerDescriptionProvider declaration

*

*/

#ifndef CUPNPMEDIASERVERDESCRIPTIONPROVIDER_H

#define CUPNPMEDIASERVERDESCRIPTIONPROVIDER_H

// INCLUDES

#include <e32std.h>

#include <e32base.h>

#include <e32hashtab.h> 

#include "upnpdevicedescriptionprovider.h"

// FORWARD DECLARATION

class CUpnpSecurityManager;

class TInetAddr;

const TInt KMaxUriLength = 256;

// CLASS DECLARATION

/**

 * CUpnpMediaServerDescriptionProvider

 * Provides description of device and its services, and icons. 

 *

 * @lib avmediaserver.exe

 * @since S60 MCL 

 */

class CUpnpMediaServerDescriptionProvider : public CBase,

        public MUpnpDeviceDescriptionProvider

    {

public:

    /**

     * Destructor.

     */

    ~CUpnpMediaServerDescriptionProvider();

    /**

     * Two-phased constructor.

     */

    static CUpnpMediaServerDescriptionProvider* NewL();

    /**

     * Two-phased constructor.

     */

    static CUpnpMediaServerDescriptionProvider* NewLC();

    /**

     * Adds new map uri to file.

     * 

     * @since S60 MCL

     * @param aUri uri

     * @param aFile file for aUri

     */    

    void AddUriToFileMapL( const TDesC8& aUri, const TDesC16& aFile );

    /**

     * Removes map uri to file.

     * 

     * @since S60 MCL

     * @param aUri uri

     */    

    void RemoveUriToFileMapL( const TDesC8& aUri );

private:    // from MUpnpDeviceDescriptionProvider

    virtual TInt OnDeviceDescription( CUpnpDeviceDescriptionRequest& aRequest );

    virtual TInt OnServiceDescription( CUpnpDeviceDescriptionRequest& aRequest );    

    virtual TInt OnIcon( CUpnpDeviceDescriptionRequest& aRequest );            

    virtual TInt GetFile( const TDesC8& aUri, RFile& aFile ); 

private:

    /**

     * Constructor for performing 1st stage construction

     */

    CUpnpMediaServerDescriptionProvider();

    /**

     * EPOC default constructor for performing 2nd stage construction

     */

    void ConstructL();

    /**

     * Main function to service requests.

     * 

     * @since S60 MCL

     * @param aRequest request to service

     * @return error code

     */

    TInt OnRequest( CUpnpDeviceDescriptionRequest& aRequest );

    /**

     * Check if resource is accessible.

     * Leaves with -EHttpNotFound when filename 

     * is not authorized for specific IP.

     * May leave with other system error code. 

     * 

     * @since S60 MCL

     * @param aFileName data source file name

     * @param aSender sender IP address

     */

    void AuthorizeRequestL( const TDesC& aFileName, const TInetAddr& aSender );

    /**

     * Gets a folder with device description.

     * Leave with KErrNotFound when aUri is not found.

     * 

     * @since S60 MCL

     * @param aUri uri to get file for

     * @param aPath on return contains path of file related to aUri

     */

    void GetFileFromUriL( const TDesC8& aUri, TDes& aPath );

    /**

     * Gets a path from uri. Removed IP and port.

     *  

     * @since S60 MCL

     * @param aUri uri to extract

     * @return allocated buffer with extracted uri lower case

     */

    HBufC8* ExtractPathAndFileFromUriL( const TDesC8& aUri );

private:

    // Security manager

    // Own

    CUpnpSecurityManager* iSecurityManager;

    // File server session used to open file

    RFs iFs;

    // Hash map uri to file

    RHashMap< TBufC8<KMaxUriLength>, TFileName > iUriMap;

    // Used for file name to aviod use this type on stack

    TFileName iFileName;

    };

#endif // CUPNPMEDIASERVERDESCRIPTIONPROVIDER_H